What is the process for modifying the nested property values within a JObject?

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The process for modifying the nested property values within a JObject is as follows:

1. Retrieve the nested property using the SelectToken method.
2. Modify the value of the property.
3. Save the changes to the JObject.

Here is an example in C#:

// Create a JObject
JObject jsonObj = JObject.Parse(@"{
  'name': 'John Smith',
  'age': 42,
  'address': {
    'street': '123 Main St',
    'city': 'Anytown',
    'state': 'CA',
    'zip': '12345'
  }
}");

// Retrieve the zip code property
JToken zipProp = jsonObj.SelectToken("address.zip");

// Modify the value of the zip code property
zipProp.Replace("67890");

// Save the changes to the JObject
string updatedJsonString = jsonObj.ToString();